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Effect of plasmid DNA dimension evolution on the size of ag nanoparticles during photoirradiation

  • Beihang University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Under the photoirradiation, DNA works as both template and reducing agent to drive the formation of metallic nanomaterials. In this study the plasmid DNA with different base pairs was applied as biotemplate to synthesize Ag nanoparticles (NPs) by using photoirradiation approach. The evolution of DNA dimension changed during the synthesis process, and their effect on the morphology of the synthesized Ag NPs was studied by UV-Vis spectra, FT-IR spectra, Raman spectra, AFM, and TEM. It is found that the plasmid DNA shrinked twice during the synthesis, the first time happened when the Ag(I) cations neutralized the negative charge along the DNA chain, and the second time happened when plasmid DNA reduced Ag(I) induced by the ultraviolet C (254 nm) irradiation. The size of the synthesized Ag NPs showed approximately linear relationship with the dimension of plasmid DNA scaffolds under this photo-induce condition. The compaction degree of the plasmid DNA during the Ag formation was shown by the slope of the linear relationship.

源语言英语
主期刊名Materials and Technologies for Energy Supply and Environmental Engineering
编辑Yafang Han, Ying Wu, Runhua Fan, Xuefeng Liu, Guangxian Li, Fusheng Pan, Fusheng Pan, Fusheng Pan
出版商Trans Tech Publications Ltd
194-199
页数6
ISBN(印刷版)9783038356561
DOI
出版状态已出版 - 2016
活动Chinese Materials Conference on Materials and Technologies for Energy Supply and Environmental Engineering, 2015 - Guiyang, 中国
期限: 10 7月 201514 7月 2015

出版系列

姓名Materials Science Forum
847
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议Chinese Materials Conference on Materials and Technologies for Energy Supply and Environmental Engineering, 2015
国家/地区中国
Guiyang
时期10/07/1514/07/15

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